Analysis Overview
SHA256
43a38e61e55656a97efa139ef3b52248ac2f2adf3b15bed9299a575867677d72
Threat Level: Known bad
The file 43a38e61e55656a97efa139ef3b52248ac2f2adf3b15bed9299a575867677d72.gz was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Suspicious use of SetThreadContext
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Suspicious use of UnmapMainImage
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-18 16:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-18 16:09
Reported
2024-07-18 16:11
Platform
win7-20240704-en
Max time kernel
118s
Max time network
120s
Command Line
Signatures
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2732 -s 1816
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ainvestinternational.com | udp |
| US | 104.21.5.131:443 | ainvestinternational.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 216.58.201.99:80 | c.pki.goog | tcp |
Files
memory/2732-0-0x000007FEF5D83000-0x000007FEF5D84000-memory.dmp
memory/2732-1-0x0000000000140000-0x00000000001C6000-memory.dmp
memory/2732-18-0x00000000020A0000-0x00000000020AA000-memory.dmp
memory/2732-20-0x000007FEF5D83000-0x000007FEF5D84000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-18 16:09
Reported
2024-07-18 16:11
Platform
win10v2004-20240709-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Formbook
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3600 set thread context of 4352 | N/A | C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
| PID 4352 set thread context of 3420 | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | C:\Windows\Explorer.EXE |
| PID 5096 set thread context of 3420 | N/A | C:\Windows\SysWOW64\chkdsk.exe | C:\Windows\Explorer.EXE |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windows\SysWOW64\chkdsk.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\chkdsk.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\chkdsk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\chkdsk.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO-2024151-pdf.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ainvestinternational.com | udp |
| US | 104.21.5.131:443 | ainvestinternational.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 216.58.201.99:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 131.5.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.201.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.mythandbody.com | udp |
| US | 13.248.243.5:80 | www.mythandbody.com | tcp |
| US | 8.8.8.8:53 | 5.243.248.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.health4world.com | udp |
| US | 3.94.41.167:80 | www.health4world.com | tcp |
| US | 8.8.8.8:53 | 167.41.94.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.dmvdrivingpermit.com | udp |
| US | 44.227.65.245:80 | www.dmvdrivingpermit.com | tcp |
| US | 8.8.8.8:53 | 245.65.227.44.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.eco-liga.com | udp |
| DE | 18.193.36.153:80 | www.eco-liga.com | tcp |
| US | 8.8.8.8:53 | 153.36.193.18.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | www.finessedesignhouse.com | udp |
| DE | 91.195.240.19:80 | www.finessedesignhouse.com | tcp |
| US | 8.8.8.8:53 | 19.240.195.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.anviltotable.com | udp |
| US | 3.33.130.190:80 | www.anviltotable.com | tcp |
| US | 8.8.8.8:53 | 190.130.33.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/3600-0-0x00000000002F0000-0x0000000000376000-memory.dmp
memory/3600-1-0x00007FFD66510000-0x00007FFD66705000-memory.dmp
memory/3600-2-0x00007FFD66510000-0x00007FFD66705000-memory.dmp
memory/3600-12-0x000000001BB80000-0x000000001BB8A000-memory.dmp
memory/4352-14-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4352-15-0x00007FFD66510000-0x00007FFD66705000-memory.dmp
memory/3420-17-0x0000000008AE0000-0x0000000008C3B000-memory.dmp
memory/3600-18-0x00007FFD66510000-0x00007FFD66705000-memory.dmp
memory/5096-19-0x0000000000D60000-0x0000000000D6A000-memory.dmp
memory/5096-20-0x0000000000D60000-0x0000000000D6A000-memory.dmp
memory/5096-21-0x00000000012A0000-0x00000000012CF000-memory.dmp
memory/3420-23-0x0000000008AE0000-0x0000000008C3B000-memory.dmp
memory/3420-26-0x0000000008EE0000-0x0000000009024000-memory.dmp
memory/3420-27-0x0000000008EE0000-0x0000000009024000-memory.dmp
memory/3420-30-0x0000000008EE0000-0x0000000009024000-memory.dmp